This is a set of four rear leaf spring insulator bushing inserts designed for the 15-20 Ford F-150. These are direct replacement parts made of OEM material with 100% accuracy of fit. These leaf helper spring insulator pads do not require drilling for installation. They are compatible with rear, left, and right placements on the vehicle. The package includes 4 items, all in black color. The interchange engineering part numbers are FL34-5586-AC, FL34-5586-AB, and FL34-5586-AA. What you see in the pictures is exactly what you will receive with your order. If you have any questions please feel free to contact us! Genuine Ford replacement parts are a part of what keeps a vehicle looking and performing its best over the long term, something that the Ford company has always known. When choosing parts for your Ford vehicle, make the best choice: Use durable and affordable parts made specifically for the manufacturer of your vehicle. These genuine Ford parts are a fit for your vehicle. Ford OEM parts are the way to go if you want to keep your vehicle as close to its original condition as possible. All Ford parts come with a standard 2 year warranty from the date of purchase.